If you don't receive SMS verification code, please check the situations below:
1. Do not input '0' before your phone number after choosing the country code, and make sure you input the correct phone number instead of a landline.
2. Please move your SIM card into another mobile phone or restart your phone and try again with anti-virus software turned off.
3. Network anomalies may cause loss of messages. Check whether your mobile phone is out of service. Please re-submit the request by changing the network.
Poor network connectivity can cause delays in receiving SMS messages. Ensure that your phone has a strong signal and try again.
4. Check with your phone service company to see if they blocked the system messages and ask them to unlock the service for you.